Home / 189,218.52-261,120.78-104,337

Finding the Fourth Proportional to 189,218.52, 261,120.78 and 104,337

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Solution

The fourth proportional to 189,218.52, 261,120.78 and 104,337 is: 143,984.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,218.52 : 261,120.78 = 104,337 : x
  2. Step 2: Convert to fraction form
    189,218.52/261,120.78 = 104,337/x
  3. Step 3: Cross multiply
    189,218.52x = 261,120.78 × 104,337
  4. Step 4: Simplify right side
    189,218.52x = 27,244,558,822.86
  5. Step 5: Solve for x
    x = 27,244,558,822.86/189,218.52
  6. Step 6: Final answer
    x = 143,984.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.